Hmmmmmmmmmmm...I see...Woof!!RrrafkWeeepAs expected.To put it bluntly... this issue is similar to a spreading virus....for starters, I have a basic understanding of the main cause.Well, yes...Did you figure something out, Yagokoro-sensei?Yes, and the index case...Whaaa—!?...is these kids.A virus... you say?